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HTML

              
                // Author: Ali Soueidan
// Author URI: https//: www.alisoueidan.com

h1 <span> ๐Ÿ™Œ๐Ÿฝ I present:</span>  ๐Ÿฅ ... The depressing loading bar ๐Ÿ‘๐Ÿฝ

#loading-bar
  #progress
p  <span>0</span> / 100

a( href='http://bit.ly/2JPuBjx' target="_blank" class='reference' ) ๐Ÿ”— Ali Soueidan
              
            
!

CSS

              
                // Author: Ali Soueidan
// Author URI: https//: www.alisoueidan.com

body 
  display: flex 
  flex-direction: column
  justify-content: center 
  align-items: center
  margin: 0
  height: 100vh
  overflow: hidden

#loading-bar
  width: 50vw
  height: 5vw
  min-height: 24px
  background-color: #eaeaea
  border: 1vw solid #fff
  border-radius: 5vw
  box-shadow: 0 0 2vw rgba(0,127,255,.25)
  overflow: hidden
  &.complete 
    transition: .8s ease
    transform: rotate(-180deg)
    #progress
      transition: .4s ease
      width: 0%!important
  
#progress
  width: 0%
  height: 100%
  background: linear-gradient(#25C42F, #25c491)
  transition: .5s ease
    
h1 
  margin-bottom: 6vw
  font-family: arial
  font-size: 2vw
  font-weight: 100
  text-align: center
  
  span 
    display: block
    margin-bottom: 1vw
    
p 
  margin-top: 2vw
  font-family: arial
  font-size: 2vw

.reference
    position: absolute
    right: 24px 
    bottom: 24px
    font-family: arial
    text-decoration: none
              
            
!

JS

              
                // Author: Ali Soueidan
// Author URI: https//: www.alisoueidan.com

let bar = document.querySelector("#loading-bar");
let progress = document.querySelector("#progress");
let reporter = document.querySelector("p > span");

let processingTime = 800;
let i = 0;
setInterval( function(){ 
  
  if ( i < 99 ) {
    i = i + Math.floor(Math.random() * (25 - 1));
    progress.style.width = i + "%";
    processingTime = Math.floor(Math.random() * (3000 - 800));
    if ( i >= 99 ) {
      i = 99;
      reporter.textContent = i;
      bar.classList.add('complete');
      processingTime = 1000;
    }
    reporter.textContent = i;
  } else {
    i = 0;
    progress.style.width = i + "%";
    reporter.textContent = i;
    bar.classList.remove('complete');
    processingTime = Math.floor(Math.random() * (3000 - 800));
  };
  
}, processingTime);
              
            
!
999px

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